Seals

ABSTRACT

A door seal having a channel-shaped rigid member in which is contained a sealing member. A resilient member is located between the sealing member and the channel member and a longitudinal ridge, which forms part of either the sealing member of the channel member, is arranged so as to deform the resilient member when the sealing member is depressed in use.

United States Patent Dixon 1451 May 2, 1972 54] SEALS 2,494,247 1/1950Kinish ..49/4s1 3,296,356 1/1967 McAdams..... ...49/48; x [72]Harpenden' England 3,453,780 7/1969 Thompson ..49/4s9 x [73] Assignee:Sealmaster Limited, London, England FOREIGN PATENTS OR APPLICATIONS 22Filed: Mar. 17, 1971 519,765 5/1953 Belgium ...49/481 [21] App]. No;125,347 567,501 12/1923 France ..49/48l ltaly ..49/480 [30] ForeignApplication Priority Data June 16, 1967 Great Britain ..27,950/67 [52]US. Cl ..49/48l, 49/483 [51] Int. Cl ..E06b 7/16 [58] Field of Search..49/475, 480-483, 49/484, 489, 493, 468, 470, 370, 366; 277/58, 50,177, 173

[56] References Cited UNITED STATES PATENTS 416,357 12/1889 Coleman..49/481 1,948,017 2/1934 Wuebling...

Primary ExaminerDavid .l. Williamowsky Assistant Examiner-Philip C.Kannan ArlorneyStevens, Davis, Miller & Mosher [57] ABSTRACT A door sealhaving a channel-shaped rigid member in which is contained a sealingmember. A resilient member is located between the sealing member and thechannel member and a longitudinal ridge, which forms part of either thesealing member of the channel member, is arranged so as to deform theresilient member when the sealing member is depressed in use.

6 Claims, 4 Drawing Figures PATENTEDMAY we 3,659,382

SHEET 20F 2 IN VENTDR )3 ERA/9RD D/ X D V SEALS This application is acontinuation of application Ser. No. 736,461 filed June 12, 1968, nowabandoned.

This invention relates to seals and more particularly to seals of thetype used in building construction for sealing doors, window, etc.

The present invention seeks to provide a seal of this type which issufficiently supple to avoid the sealing element being under excessivepressure. 1

According to the invention a seal comprises a channel shaped rigid basemember whose aperture is of less width than the largest width of thechannel, a sealing member having a first portion adapted to protrudefrom the channel aperture to effect a seal and a second portion by whichit is retained in the channel member and a resilient member between thesealing member and the base of the channel to impart resilience to thesealing member, the sealing member or the base of the channel having alongitudinal ridge engaging the resilient member in such a way that whenthe sealing member is depressed in use, the ridge will deform theresilient member.

Preferably the sealing member is rigid and has a rounded sealingextremity. The resilient member may be a tube which imparts resilienceto the sealing member when deformed from its normal section.

The invention will now be described in greater detail by way of examplewith reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of a seal in accordance with the invention;

FIG. 2 is a perspective view of the seal of FIG. 1 cooperating with acomplementary seal also in accordance with the invention; and

FIGS. 3 and 4 show alternative constructions of seal.

Referring first to FIG. 1, a seal comprises a rigid metallic channelmember 1 having its aperture 2 therein of less width than the maximumwidth of the channel. A sealing member 3 is provided and includes afirst portion 4 which protrudes from the channel member 1 to provide theseal and a second portion 5 which retains the sealing member 3 withinthe channel. The sealing member 3, which is made from a rigid plasticsmaterial, is also provided with a longitudinal ridge 6 extending towardsthe base of the channel member 1 and engages a resilient piece or member7. The sealing surface 8 of the sealing member 3 is rounded to assistcorrect sealing.

The resilient piece or member 7, which imparts resilience to the sealingmember 3, is a tube of resilient plastic or rubber and is in itsunstressed form generally oval. In its normal condition this oval issomewhat deformed by the ridge 6 which, when the sealing member 3 isdepressed during sealing, will further deform the oval to provide aresilient effect.

FIG. 2 shows the cooperation of the seal of FIG. 1 with a complementaryseal which is almost identical. Like parts in the complementary seal aremarked From this Figure it will be seen that the only difference betweenthe two seals is the provision of a longitudinal groove 9 in the sealingmember v resilient than the res 3 into which the rounded part 8 of thesealing member 3 fits. This type of sealing arrangement is often usedwhere two moving structures are to be sealed together such as doubledoors.

FIG. 3 shows a seal in which a double support is used for the sealingmember 3. In this embodiment the single ridge 6 is replaced by a doubleridge 10. Each of the ridges 10 engages a generally circular tubularresilient member 11 and in order to separate these two resilient membersand retain them in their correct positions, the channel member 1 isdivided towards its base by a divider 12.

In the embodiment of FIG. 4, the ridge 6 on the sealing member 3 isreplaced by a ridge 14 on the base of the channel member 1, the majorpart of one side of the'resilient member 7 bearing directly on to thesealing member 3.

It will be appreciated that various modifications can be made to theabove described embodiments without departing from the invention. Forexample, the sealing member 3 may also be of a resilient Blasticsmaterial (althou h preferably less ient members 7 and 1lor it may have aresilient sealing insert. The resilient members 7 and 11 instead ofbeing tubular may be of resilient foam or other suitable material.

What is claimed is:

l. A seal of elongate form comprising a channel shaped rigid base memberwhose aperture is of less width than the largest width of the channel, asealing member having a first portion adapted to protrude from saidchannel aperture to effect a seal and a second portion by which it isretained in said channel member, and a piece of resilient materialbetween said sealing member and the base of said channel to impartresilience to said sealing member, one of said members having alongitudinal ridge of transverse dimension at its outer extremitysubstantially less than the largest width of the channel, the ridgeextremity engaging said resilient piece in such a way that when saidsealing member is depressed in use further into the channel, the ridgeextremity is adapted to form a depression elongated longitudinally ofthe ridged member and concave transversely of the latter member.

2. A seal according to claim 1, in which the sealing member is rigid andis formed with the longitudinal ridge, the transverse dimension of theridge being progressively reduced from the base of the ridge to theouter extremity of the ridge.

3. A seal according to claim 1, in which the channel member is formedinternally with the longitudinal ridge, the ridge upstanding from thechannel base.

4. A seal according to claim 1, in which said sealing member is rigidand has a rounded sealing extremity.

5. A seal according to claim 1, in which is in the form of an open-endedtube.

6. A seal according to claim 1, in which there are two such resilientpieces and respective ridges, the said pieces being disposed side byside between the side walls of the channel, and one such piece beingdisposed in like relationship to the sealing member and the base of thechannel as the other such piece.

said resilient piece

1. A seal of elongate form comprising a channel shaped rigid base memberwhose aperture is of less width than the largest width of the channel, asealing member having a first portion adapted to protrude from saidchannel aperture to effect a seal and a second portion by which it isretained in said channel member, and a piece of resilient materialbetween said sealing member and the base of said channel to impartresilience to said sealing member, one of said members having alongitudinal ridge of transverse dimension at its outer extremitysubstantially less than the largest width of the channel, the ridgeextremity engaging said resilient piece in such a way that when saidsealing member is depressed in use further into the channel, the ridgeextremity is adapted to form a depression elongated longitudinally ofthe ridged member and concave transversely of the latter member.
 2. Aseal according to claim 1, in which the sealing member is rigid and isformed with the longitudinal ridge, the transverse dimension of theridge being progressively reduced from the base of the ridge to theouter extremity of the ridge.
 3. A seal according to claim 1, in whichthe channel member is formed internally with the longitudinal ridge, theridge upstanding from the channel base.
 4. A seal according to claim 1,in which said sealing member is rigid and has a rounded sealingextremity.
 5. A seal according to claim 1, in which said resilient pieceis in the form of an open-ended tube.
 6. A seal according to claim 1, inwhich there are two such resilient pieces and respective ridges, thesaid pieces being disposed side by side between the side walls of thechannel, and one such piece being disposed in like relationship to thesealing member and the base of the channel as the other such piece.